Supporting structure for a plurality of rolls



SUPPORTING STRUCTURE FOR A PLURALITY 0F ROLLS Filed April 21, 194"! April 24, 1951 G. LINDSAY 3 Sheets-Sheet 1 M 5 r. r 7. n a 7 5 4 w M a 9 V n 2:35:2 @Iaiw! A. 1 5 7 ,5

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flrraemsn p 1951 G. LINDSAY I 2,549,912

SUPPORTING STRUCTURE FOR A PLURALITY OF ROLLS Filed April 21, 1947 3 Sheets-Sheet 2 o I 3' jiw z/vroe:

./a/vzz 6-. L/N051411 April! 24, 1951 L. G. LINDSAY 2,549,912

SUPPORTING STRUCTURE FOR A PLURALITY OF ROLLS Filed April 21, 1947 v 3 Sheets-Sheet 3 Patented Apr. 24, 1951 UNITED STATES PATENT OFFICE SUPPORTING STRUCTURE FOR A PLURALITY OF ROLLS 13 Claims.

This invention relates to a structure for supporting rolls, such, for example, as rolls of photographically sensitive paper.

Photographic printing machines, such as blue print machines or Ozalid printing machines, are usually supplied with sensitized paper from a roll located adjacent the feeding end of the machine.

It is one of the objects of this invention to make it possible to replace an exhausted roll in a very simple manner, and without the necessity of leaving the machine idle for any appreciable period.

It is another object of this invention to provide a device of this character that may be very easily loaded with rolls for'successive use; and while the machine is in active operation, a roll may be placed into position so that it may be moved into operative position as soon as the current roll is exhausted.

It is still another object of this invention to I provide a structure of this character that can preclude the fogging of the paper on the rolls, by the aid of substantially light proof chambers in which the rolls are accommodated.

This invention possesses many other advantages, and has other objects which may be made more clearly apparent from a consideration of several embodiments of the invention. For this purpose there are shown a few forms in the drawings accompanying and forming a part of the present specification. The forms will now be described in detail illustrating the general principles of the invention; but it is to be understood that this detailed description is not to be taken in a limiting sense, since the scope of this invention is best defined by the appended claims.

- Referringto the drawings:

Figure 1 is a side elevation of a structure embodying the invention;

Figs. 2, 3, and 4 are enlarged sectional views, taken respectively along planes corresponding to. lines 2-2, 3 3, and 4-4 of Fig. 1;

Fig. 5 is a side elevation of a modified form of the invention;

Fig 6 is a sectional view, taken substantially along a plane corresponding to line 6-5 of Fig. 5;

Fig. 7 is a sectional view, taken along a plane corresponding to line I'I of Fig. 6;

Fig. 8 is a fragmentary view, partly broken away, illustrating an element of the apparatus illustrated in Figs. 5 and 6; and

Fig. 9 is an enlarged sectional view, taken along a plane corresponding to line 9-9 of Fig. 6.

In Figs. 1 and 2 a table I is illustrated having a rounded front edge 2. This table I is intended to provide a support for sensitized paper 3 to be fed to a printing machine adjacent the table l.

The paper 3 is shown as being supplied from a roll 4 supported underneath the table I. For this purpose theroll 4 is mounted on a cylindrical rod 5. This rod 5, in turn, is supported by the aid of a frame structure. This frame structure has two side plates 6 and 1, between which the rod 5 extends. A supplemental rod 8, similar to rod 5, is also disposed between the plates 6 and I. It is intended to support a supplemental roll 9. Thus, by reversal of the frame structure, the roll 9 may be brought into the operative position of roll 4.

,In order that the frame structure may thus be reversed in position, it is pivotally mounted, as by the aid of a shaft ID that passes through the plates 6 and I and is rigidly attached thereto. The shaft I0 is supported at its ends in appropriate standards II mounted on brackets I2. These brackets I2 are fastened to the lower side of the table I.

The frame member including plates 6 and I,

and shaft Il] may be rotated in a clockwise direction, as viewed in Fig. 1, about the axis of shaft I0, and a latch mechanism is provided to hold this frame structure in its angularly adjusted position. Thus, extending transversely from the bracket I2 is a strap I3 (Figs. 1 and 4).

A standard I4 is attached to the strap I3 and serves to pivot a pair of hook members or latches I5 and I6. Hook member I5 has a sloping surface IB adapted to be contacted by the frame plate I in its rotational movement and to depress the hook member I5 against the force of a compression spring I9.

The plate I proceeds until it passes beyond the sloping surface I8 and then the abrupt abutting surface 20 of hook I5 engages the plate. It is held against this abutting surface by the manually operable hook member I6. This hook member I6 forms an abutment for the righthand side of the plate I. It may be released, as by the aid of a knob 22 having a stem 23 pivotally joined to the hook I6. A compression spring 24 urges the hook I6 into operative position.

Accordingly, when the plate I moves in a clockwise direction, and with the knob 22 in the normal position, the hook I5 will be depressed and the plate I will move to the full-line position of Fig. 4. It will be held there between the two hooks I5 and I6.

When. it is desired to rotate the frame formed by the members 6, I, and it, the knob 22 is pulled and the plate member I can be moved away from it, thus freeing the frame structure.

The roll supporting rods 5 and a are arranged to be readily disengageable from the plates 6 and "I for the purpose of placing new rolls thereon. Thus, for example, in the position of Fig. l, the lower rod 8 can be loaded with a roll 9 while the machine is in operation.

Since the mechanisms associated with rods 5 and 7 are identical, it i necessary to describe only one of them.

Thus, rod 5 is slidably mounted in the frame 6 and is provided with a head which abuts the left hand side of the plate 6. A compression spring 26, abutting the collar 27! mounted on the rod 5, serves to urge rod 5 toward the right. The aperture in plate 6 through which rod 5 passes is provided with tapered portions Ed on each side of the plate 5, as indicated in connection with rod 5 in Fig. 2. In this way, when the right hand end of rod 5 is free, the rod 5 can be moved universally with respect to this aperture.

The right-hand end of the'rod 5, as shown most clearly in Fig. 3, is receivable in an aperture 28 formed in a Wall' 29. This wall 29 is attached, as by welding, to the plate member 1. It has a sloping surface 30 inclined to the axis of rod 5. The aperture '28 is at the bottom of the slope. The wall 29 forms the bottom of a slot or recess 3! into which the end of the rod 5 projects. As the rod 5 is placed into the slot, its end siides on the surface 3% and spring 25 is slightly compressed. When the rod 5 reaches the full-line position of Fig. 3, spring 25 urges it into the aper ture 28. It is restrained against removal by the edge of this aperture.

To remove the rod 5, it may be pulled toward the left, as viewed in Fig. 2, compressing spring 26. Then, as the end of the rod 5 is freed from the aperture 28, it may be moved outwardly for removing an exhausted roll and for replacing a new roll.

When the paper to be supplied. is quite sensitive to' light, it is necessary to provide enclo sures that would prevent the paper from fog ging. Such paper is oftenused in special types of printing, such as Ozalid printing.

An arrangement for providing such an enclosure is'illustrate'd in Fi s. 5, 6, 7, 8, and 9.

In this form of the invention, the table 32 which is adjacent the feeding end of the printing machine serves to support brackets 33 and 34. These brackets provided bearings having a central shaft 35 upon which are mounted the end frames 36 and 31. Frame 38 is shown in this instance as provided with four equian'gularly spaced arms 33, 39, 48, and 44 (Fig. '7). Frame 31 carries arms opposite these arms, arm H being opposite arm 4%; and arm 12 being opposite arm 33. These arms serve to support rods 42 upon which rolls 4-3 of sensitized paper may be mounted.

As before, rods 42 are mounted in a universal For this mannerin the left-hand frame 37. purpose, the rod 42, as shown in Fig. is provided with a ball end 44. It is universally movable in a socket formed by the arm "H and a socket member 45. g The right-hand ends of all of the rods are removably mounted in the right-hand frame 35. Thus, one of the arms 4| of the frame is shown in Fig. 8. It is received in a slot 47 leading obliquely from the arm 4!. The rod 42 is retained in operative position by the aid of a pivoted latch 46, the end of which projects into the 4 slot 41. A compression spring 48 urges the latch to latching position. The latch 45, however, may be manually rotated out of the path of the rod 42. Then the rod may be moved transversely for removal and replacement of rolls.

The latch is supported upon a bracket 49 that is appropriately joined to the arm 39. Each of the other arms 40, 4! and 38 are similarly equipped with latches 46.

For the position indicated in Fig. '7, the lefthand roll 43 is active and supplying sensitized paper to the printing machine. In order to bring any one of the other rolls into active position', use is made of a hand wheel 5| (Figs. 5 and 6). This hand wh el is mounted on the shaft 35. It is arranged to be latched in any one of the four positions, bringing the rolls 53 successively into operative relation with the machine. For this purpose, use is made of a latch illustrated most clearly in Fig. 9. This latch is arranged to hold any one of four spokes 52 of the wheel 5i. These four spokes are equi-angularly spaced and correspond to an active position of the left-hand roll.

The latch structure is mounted on a base 53 that projects laterally from the bracket 33. It is provided with a pair of hook members 54 and 55. Each of these members is urged to engaging position, as by compression springs 56 and 51. They are pivoted by aid of a bearing standard 58, joined to the base 53.

Hook member 54' has a sloping face 59 that is contacted by the spoke-52 to permit the spoke to pass beyond the hook member. It is urged into contact with the abrupt face 55 of the other hook member 55. be released by the aid of a handle 6! to free the spoke and to permit rotation of the wheel 5| when desired. I

In order to provide a light-proof enclosure for all rolls except the one which is in use, a sheet metal cylindrical casing 52 is provided; This cylindrical casing is supported by. aid of asheet metal bracket 53 on the vertical wall 54 (Fig. 5) formed on'the printing machine. The casing has ends and 66 through which the shaft 35 passes. It also has an opening at the left-hand side, as viewed in Fig. 5, which is adapted to be closed by an arcuate cover member 6'! having a handle 58. l/Vhen the machine is not in use, this cover member 6"! may be rotated to close the casing entirely. The paper 55 is led through the opening in the casing fi l Further to ensure against entry of light, resilient light seals 59 such as of flexible rubber, are provided. urged into resilient contact with the inner cylindrical surface of casing 52, as well as with the surfaces of the ends 55 and 67. Preferably, these seals may be mounted on sheet metal me mb'e'rs '56 carried by the frame members 35 and 37. The inner ends of the seals 65, as shown most clearly in Fig. 7, are also in sealing contact with the hubs formed on the frame members 36 and 3'! and on the ends 65 and 56.

In order to retard free movement of the paper from the rolls, springs may be mounted to exert a slight friction on the roll periphery. One such spring '54 is shown in Fig. 6. It is in the form of a bowed leaf spring having a central friction shoe 1. In a roll supporting structure: a frame; means for pivotally mounting the frame about an This hook member, however, may

These light seals have free edges" 5 axis; a plurality of rods supported by said frame upon which rolls are to be supported, and having their axes arranged parallel to the frame axis and angularly spaced thereabout; means for releasably holding the frame in any of a plurality of angular positions about the frame'axis; means providing a pivotal mounting on said frame for one end of each rod; means for detachably holding the other end of each rod in roll supporting position, including means forming a recess having a wall inclined with respect to the normal position of the rod axis for cooperating with said other end of the rod to permit the rod to be swung about its pivotal mounting out of its norma1 position, said wall having an aperture for the reception of said other end of the rod when said other rod end is moved to operative position; and a spring urging the rod into the aperture.

2. In a roll supporting structure: a frame; means for pivotally mounting the frame about an axis; a plurality of rods supported by said frame upon which rolls are to be supported, and having their axes arranged parallel to the frame axis and angularly spaced thereabout; and a pair of latches for releasably holding said frame in any of a plurality of angular positions about the frame axis, a part of the frame being adapted to be confined between the latches, one of said latches having means for manually releasing it; and the other having an inclined face adapted to be engaged by the frame to urge the latch out of the path of the frame until the frame appreaches the other latch.

3. In a supporting structure for rolls of photographically sensitized material: a stationary housing having an opening through which material from a roll may pass; a pivotally mounted frame in the housing; a plurality of means carried by the frame for supporting a plurality of rolls; means external of the housing for angu-- larly adjusting the frame to cause any of the roll carried thereby to assume a cooperative position with the opening; and light sealing partitions carried by the frame and extending between the roll carrying means, and slidably contacting with the inner surface of the housing.

4. In a supporting structure for rolls of photographically sensitized material: a stationary cylindrical housing having an opening through which material from a roll may pass; a frame pivoted about the axis of the housing and located therein; a plurality of roll supporting rods carried by the frame, having axes parallel to the housing axis; means external of the housing for angularly adjusting the frame to cause any of the rods to be in cooperative position with the opening; and partitions between the rods and carried by the frame, said partitions having re-- silient light sealing edges slidable along the ends and the cylindrical surface of the stationary housing.

5. In a supporting structure for rolls of photographicaly sensitized material: a cylindrical housing having an opening through which material from a roll may pass; a cover for the opening; a frame having a shaft pivotally mounted in the ends of the housing and coaxially with the housing; said frame having a plurality of arms adjacent each end of the housing; roll supporting rods carried by the arms; a wheel mounted on the shaft externally of the housing for angularly adjusting the frame, said wheel having spokes; and a releasable latch engageable with one of said spokes for holding the frame in angularly adjusted position.

6. Ina supporting structure for rolls of plac tographically sensitized material: a stationary cylindrical housing having an opening through which material from a roll may pass; a cover for the opening; a frame having a shaft pivotally mounted in the ends of the housing and coaxially with the housing; said frame having a plurality of arms adjacent each end of the housing; roll supporting rods caried by the arms; a wheel mounted on the shaft externally of the housing for angularly adjusting the frame; a releasable latch cooperating with the wheel for holding the frame in angularly adjusted position; and partitions carried by the frame, and extending between the rods, said partions having resilient light sealing edges slidably engaging the ends and the cylindrical surface of the housing.

7 In a roll supporting structure: a rod; a support for one end of the rod, having provisions for permitting angular movement of the rod about the support; means forming a recess having a wall inclined with respect to the normal position of the rod axis, and cooperating with the other end of the rod to permit the rod to be moved out of its normal position, said wall having an aperture for the reception of said other end when the said other end is moved to operative position; and a spring urging the rod into the aperture.

8. In a roll supporting structure: a frame; means for pivotally mounting the frame about an axis; a plurality of rods supported by said frame upon which rolls are to be supported, and having their axes arranged parallel to the frame axis and angularly spaced thereabout; means for releasably holding the frame in any of a plurality of angular positions about the frame axis; means providing a universal mounting in said frame for one end of each rod; and means for detachably holding the other end of each rod in roll supporting position, including a slot in said frame disposed transversely of the rod axis; and spring means engageable with said rod and movable lengthwise of the rod in a plane in which said axis lies for holding said rod in said frame in roll supporting position with its axis parallel to the frame axis.

9. In a roll supporting structure: a frame comprising axially spaced arms extending on opposite sides of the frame axis; means for pivotally mounting the frame about its axis; a plurality of rods supported by said arms and upon which rolls are to be supported, and having their axes arranged parallel to the frame axis and angularly spaced thereabout; and a pair of latches for releasably holding said frame in any one of a plurality of angular positions, about the frame axis; means urging said latches toward each other to cause said latches to embrace one of said arms; one of said latches having means for manually releasing it from said one arm; and the other of said latches having an inclined face adapted to be engaged by said arm to urge said other latch out of the path of the arm until the arm is disposed between said latches to be confined thereby.

10. In a roll supporting structure: a frame; means pivotally mounting the frame about an axis; a plurality of rods supported by said frame upon which rolls are to be supported, and having their axes arranged parallel to the frame axis and angularly spaced thereabout; means for releasably holding the frame in any of a plurality of angular positions about the frame axis; means providing a mounting on said frame for one end 7, ofeach rod; means for detachably holding said other end of each rod in roll supportin position, including means forming an aperture for receiving said other end of the rod; and a spring encircling said rod at said one end and engaging said frame to urge the rod into the aperture.

ll. In a roll supporting structure: a frame; means pivotally mounting the frame about an axisi a plurality of rods supported by said frame upon which roli are to be supported, and having their axes arranged parallel to the frame axis and angularly spaced thereabout; means for releasably holding the frame in any of a plurality of angular positions about the frame axis; means providing a mounting on said frame for one end of each rod; means for detachabi holding said other end of each rod in roll supporting position, including means forming an aperture for receiving said other end of the rod, a collar on therod at said one end, and a spring bearing upon said collar and frame and urging the rod into the aperture.

12. In a supporting structure for rolls of photographicaily sensitized materials: a stationary housing having spaced end portions and an intermediate portion extending between said end portions, said intermediate portion having an opening through which material from a roll may pass; a pivotally mounted frame in the housing; a plurality of means carried by the frame for supporting a plurality of rolls; means external of the housing for angularly adjustin the frame to cause any of the rolls carried thereby to assume a' cooperative position with the opening; and light sealing partitions carried by the frame and extending generally radially of the pivotal axis of saidfrarne between the roll carrying means, said partitions slidab'ly contacting said end and intermediate portions of said housing.

g '13. In a supporting structure for rolls of photographically sensitized material: a stationary housing having spaced and portions and an intermediate portion extending between said end portions, said intermediate portion having an opening through which material from a roll may pass; a pivotally mounted frame in the housing; a plurality of means carried by the frame for supporting a plurality of rolls; means external ofthe housing for angularly adjusting the frameto cause any of the rolls carried thereby to assume a cooperative position with the opening; and light sealing partitions carried by the frame andex-' tending generally radially of the pivotal axis of said frame between the'roll carrying means, said partitions having fiexible means thereon in slidablesealingcontact with said end and intermediate portions of said housing. I v

LIONEL G. LINDSAY.

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